Cotton-hull separator



Dec. 7., 1926.

J. A. STREUN COTTON HULL SEPARATOR Filed July 6. 1926 W lb 2m" .I'lw"luf mi2 IIN," "I3 Patented Dec. 7, '1926.

UNITED STAT-Es PATENT foreros.

JOHN OLD STREUN, F SHERMAN, TEXAS, ASSIGNOR T0 HARDWICKE-ETTER COM-PANY, 0F SHERMAN, TEXAS.

co'r'roN-HU'LL sEPAnATon.

i My invention relates to hull separators for cleaning cotton of thehulls and chaff before the cotton is fed to the 'n.

It is an object of the lnvention to provi-'de a hull separator whichwill handle the cotton in large quantities, and at a higher rate ofspeed than ordinary cleaners of this nature. It is desired that theconstruction be a simple one, but that the capacity for hulling thematerial be increased over that of other similar types of separators.

Y, In the drawing, I have shown a construction similar to that shown inmy previous Patent N o. 1,563,596, granted December. 1st,

1.925, but modified to carry out my invention. Fig. 1 is a sideelevation of a huller gin with one side removed and the ends of theshafts ofthe rollers and cylinders in section. Fig. 2 is a frontelevationvv of the toothed conveyor cylinders and the troughs beneaththem, illustrating the arrangement of the4 teeth upon the cylinders.

In carrying out my invention, I contem-l plate the use ofmy separatorin'combination with the usual old type of cleaner indicated at A inFig. 1. This cleaner is for removing dirt from the cotton before it ishulled. It has a hopper 1 at the upper end of a housing 2 with twofeeder rolls 3 beneath the hopper,

said rolls being rotatable to feed the cotton from the hopper graduallyto a picker cylinder 4 below the feeder rolls.

There is a foraminated screen 5 below said picker cylinder, said screenbeing secured to cleats at the rear of, and below, said cylinder, sothat it is spaced from the housing and it conforms in curvatureapproximately to the curvature of the cylinder. The dirt passing throughthe screen is directed by the housing to a screw conveyor 6 whichrotates to move the dirt from the housing.

. The cotton from the cleaner is moved through a lateral opening 7 inthe housing to the huller or separator. Supported within the housing ofthe separator is a saw cylinder 8, sald cylinder havlng teeth thereondirected forwardly in the directionv of Vits rotation.

Directly in front of the opening 7 to the separator is an inwardlinclined baiile plate 10 extending' downwar ly to a point spaced fromthe saw cylinder, 4as shown. Below this bale is the Aupper conveyor roll11, said roll being mounted on 'a shaft 13 and rotatand 16 in the troughas the roll is rotated;

and I find the capacity of the machine is greatly increased and thecotton maintained in a more even and uniform layer where the cotton ismoved to the. central opening 16 as .well as toward the ends. l

There is a second conveyor roll 17 below the roll 11 and the lower rollis rotatable in a clockwise direction and has-the pins 12.

thereon directed rearwardly as in case of the upper roll. Below roll 17isa trough 18 of foraminated sheet metal with discharge openings 20 and21 therein at points which divide the trough into three approximatelyeq^ual lengths, the openings being offset from the openings 15 and 16above. The spirally arranged teeth 12 are arranged on the roll to movethe hulls toward the openings 20 and 21 from both sides. Theforaminations in the trough allow chaff and dirt to pass through thesame and a conveyor 22 discharges it from the housing.

The conveyor rolls 11 and 17 are closely adjacent the saw cylinder 8 andmove the cotton and hulls along the face of the saw cylinder so that thelint can be caught by the sawv and removed from the hulls, which aredischarged from the upper. trough through the openings 15-and 16 to thelower roll and are then moved to the openings 20v and121, where theyfall upon the conveyor 22, the cotton being entirely removedhfrom thehulls in their movement along the face of the saw cylinder. l l Belowthe level of the roll 17, and forwardly thereof, is a small picker roll24 which rotates to carry any cotton or hulls upwardly toward the sawcylinder and the` roll 17. This adds tov the agitation given to thehulls and the cotton, and assists in elimination of the hulls.

Above the saw cylinder is a knocker roll 25 acting to prevent the hulls.from being carried over with the cotton.' It has flights 26 adjacentthe the cotton to the huller breast 2S) ot the gin 30, the upper end ot'which is indicated in the drawing.

The cotton entering the Separator from the cleaner A will be received inan even layer the full length ofthe roll 11 upon whichlit will bedirected by the. battle 10. The rotation otl roll 11 will move thecotton and hulls toward the openings 15 and 16 in the trough 13 and asthe openings are three in number the discharge of the cotton will berapid and the cotton will not be allowed to bunch together. lVlien,thereioieit is ted lto' the gin it will be in a uni't'orm bat. easilyginned.

The use of two ot the rolls with the teeth in spirals so arranged as tomove the cotton toward the openings will suilice to clean all the. hullsfree of cotton lint betere the hulls are discharged and will greatlyincrease the capacity of the machine over ordinary separators.

The particular combination of elements as described is a most effectiveone in the rapid and eiicient treatment of the cotton which is to beginned.

Having thus described my invention, whatA I claim as newvand desire toprotect by Let- 2 ters Patent is:

1. A hull separator for cotton including a housing, a saw cylinder,means to clean said cotton and feed it to said housing, a baille todirect said cotton toward said cylinder, two superposed conveyor rollsbelow said baffle. and adjacent said cylinder, the upper of said rollshaving a trough below it with discharge openings therein at both endsand centrally thereof, the lower roll having a toraminated troughwith'discharge openings at two points offset from the position of theopenings in the upper trough. teeth on said rolls arranged to move thehulls toward said openings, means adjacent said cylinder at its upperand lower sides to throw the hulls toward said conveyor rolls, and meansto re\ move the cotton from said saw cylinder.

2. A hull separator for cotton including a housing,a saw cylinder, meansto feed said cotton to said housing. a bailie to direct said cottontoward said cylinder, two superposed conveyor rolls below said battle,and adjacent said cylinder` the upper of said rolls having a troughbelow it with discharge openings therein at both ends and centrallythereof, the lower'roll having a t'oralninated trough with dischargeopenings at two points otl'set from the position of the openings in theupper trough. teeth on said rolls arranged to move the hulls toward saidopenings, a picker roll below said conveyor rolls and adjacent saidcylinder and a knocker roll above said cylinder to throw the hullstoward said conveyor rolls, and means to remove the cotton from said sawcylinder.Y` K I 3. A hull separator for cotton including a housing, asaw cylinder rotatable.v the-rein, said housing having a feeding openingabove said cylinder at one side thereof, a downwardly-inclined baillewithin said opening, a plurality of conveyor rolls below said baffleadjacent said cylinder, troughs beneath said rolls, each of said troughshaving a plurality of discharge openings therein, the openings in eachtrough being offset from the openings of the adjacent one, spirallymounted teeth on said rolls arranged to move theV cotton and hullstoward said discharge openings, means to prevent the hulls from passingsaid saw cylinder and means to d ischarge the cotton from .said cylinderand said housing. v l

4. A hull separator for cotton including a housing, a saw cylinderrotatable therein, said housing having a feeding opening abo ve saidcylinder at one side thereof, means to direct the cotton toward saidcylinder, two conveyor rolls below said means adjacent said cylinder,troughs beneath said rolls, each of said troughs having a plurality ofdischarge openings therein,'the openings in each trough being offsetfrom the openings ot the adjacent one` Spirally mounted teeth on saidrolls arranged to move the cotton and hulls toward said dischargeopenings, means to prevent the hulls from passing said saw cylinder andmeans to discharge the cotton from said cylinder and saidhousing. y

In testimony whereof I hereunto atx my signature this 1st day of July A.D. 1926.

- JOHN ARNOLD STREUN.

